//---------------------------------------------------------------------------
//	Greenplum Database
//	Copyright (C) 2018 Pivotal Software, Inc.
//
//	@filename:
//		CParseHandlerNLJIndexParam.cpp
//
//	@doc:
//		
//		Implementation of the SAX parse handler class for parsing a NLJ index Param
//---------------------------------------------------------------------------

#include "naucrates/dxl/parser/CParseHandlerPhysicalOp.h"
#include "naucrates/dxl/parser/CParseHandlerScalarOp.h"
#include "naucrates/dxl/parser/CParseHandlerFactory.h"
#include "naucrates/dxl/CDXLUtils.h"
#include "naucrates/dxl/operators/CDXLOperatorFactory.h"

#include "naucrates/dxl/parser/CParseHandlerNLJIndexParam.h"

using namespace gpdxl;


XERCES_CPP_NAMESPACE_USE


// ctor
CParseHandlerNLJIndexParam::CParseHandlerNLJIndexParam
	(
	CMemoryPool *mp,
	CParseHandlerManager *parse_handler_manager,
	CParseHandlerBase *parse_handler_root
	)
	:
	CParseHandlerBase(mp, parse_handler_manager, parse_handler_root),
	m_nest_param_colref_dxl(NULL)
{
}


// dtor
CParseHandlerNLJIndexParam::~CParseHandlerNLJIndexParam()
{
	m_nest_param_colref_dxl->Release();
}


// processes a Xerces start element event
void
CParseHandlerNLJIndexParam::StartElement
	(
	const XMLCh* const, // element_uri,
	const XMLCh* const element_local_name,
	const XMLCh* const, // element_qname,
	const Attributes &attrs
	)
{
	if (0 != XMLString::compareString(CDXLTokens::XmlstrToken(EdxltokenNLJIndexParam), element_local_name))
	{
		CWStringDynamic *str = CDXLUtils::CreateDynamicStringFromXMLChArray(m_parse_handler_mgr->GetDXLMemoryManager(), element_local_name);
		GPOS_RAISE(gpdxl::ExmaDXL, gpdxl::ExmiDXLUnexpectedTag, str->GetBuffer());
	}

	m_nest_param_colref_dxl = CDXLOperatorFactory::MakeDXLColRef(m_parse_handler_mgr->GetDXLMemoryManager(), attrs, EdxltokenNLJIndexParam);
}


// processes a Xerces end element event
void
CParseHandlerNLJIndexParam::EndElement
	(
	const XMLCh* const, // element_uri,
	const XMLCh* const element_local_name,
	const XMLCh* const // element_qname
	)
{
	if(0 != XMLString::compareString(CDXLTokens::XmlstrToken(EdxltokenNLJIndexParam), element_local_name))
	{
		CWStringDynamic *str = CDXLUtils::CreateDynamicStringFromXMLChArray(m_parse_handler_mgr->GetDXLMemoryManager(), element_local_name);
		GPOS_RAISE(gpdxl::ExmaDXL, gpdxl::ExmiDXLUnexpectedTag,	str->GetBuffer());
	}

	// deactivate handler
	m_parse_handler_mgr->DeactivateHandler();
}

// EOF
